Lap pin



J. T. TICE Nov, 13, E945.

LAP PIN Filed Nov. 16, 1942 Jafin T 7766 IN VEN TOR.

Patented Nov. 13, 1945 LAP PIN John T. Tice, Atlanta, Ga.; Hedwig Ticeadministratrix of said John T. Tice, deceased I Application November 16,1942, Serial No. 465,739

1 Claim.

My invention relates to pickers of the type employed in textile mills inrunning cotton, wool and other fibers that are made into laps prior tothe carding operation, and has among its objects and advantages theprovision of an improved lap pin.

In the accompanying drawing:

Figure 1 is a side view of a lap pin illustrating the invention, with aportion broken away for the sake of compactness.

Figure 2 is a sectional view along the line 2-2 of Figure 1.

Figure 3 is an end view, and

Figure 4 is a sectional view along the line 4-4 of Figure 1.

In the embodiment of the invention selected for illustration, Figure 2illustrates a tubular steel shell In of uniform diameter throughout itslength. Bodies l2 are shrunk fit into the ends of the shell. Coaxialjournals [4 are fixed to the bodies I2, and coaxial bores l6 areprovided in the journals for the reception of the lap stick (not shown)which follows into the lap upon completion thereof and as the lap pin inis removed therefrom.

The outer face of the shell I is grooved longitudinally, as at [8, thesegrooves extending throughout the length of the shell and equally spacedcircumferentially thereabout, so that the working face of the shell ismade up of a plurality of narrow faces 20 spaced one from the other inparallel relationship and extending the full length of the shell. Thefaces 20 are of equal width, and their total area equals fifty per centof the original circumferential area of the shell.

A lap pin of the foregoing description may be removed from the finishedlap with much less frictional binding and without damage to the ends ofthe finished lap, thereby eliminating much of the waste at the cardswhich is caused by such damaged ends. A further advantage resides in thefact that the lap pin holds the cotton from the commencement of thewinding operation to its completion without slippage, which producesmore uniformity in the layers of the cotton as it is wound into a lap.This also results in a decided improvement in the Weight of the lapyardage, and results in more uniformity in the carding and spinningoperations.

The lap may be made much more compact to enable the mills to increasethe yardage of the lap and still hold the lap within present diameters,with consequent reduction in the cost of operation. The lap pin need nothave a taper to release from the completed lap, so that the laps are ofuniform diameter from end to end, which is important in making correctlyweighted laps. The uniform diameter of the lap pin produces more evenlyformed lap ends. The finished lap is such as to greatly increase theproduction of the picker. Due to the elimination of friction, the lifeof the lap pin is much longer than that of plain lap pins.

Without further elaboration, the foregoing will so fully explain myinvention, that others may, by applying current knowledge, readily adaptthe same for use under various conditions of service.

I claim:

In a lap pin, a tubular body having grooves in its exteriorcircumferential surface extendin axially from end to end of the body,said grooves being uniformly spaced circumferentially of the body so asto provide longitudinal faces having a uniform width throughout thelength of the body and having a total area equal to fifty percent of thecircumferential area of the body.

JOHN T. TICE.

